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31/10/2020 7:12 pm
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“Sodium hydrogen carbonate is a basic salt”. Justify the statement. How is it converted into washing soda? Explain.
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31/10/2020 7:22 pm
Sodium hydrogen carbonate is a salt of sodium hydroxide (strong base) and carbonic acid (weak acid). It is basic salt. It is converted into washing soda by heating followed by crystallization.
2NaHCO3(aq) + heat → Na2CO3 → CO2 → H2O